Skipping the Gravity Suit: Skipping the Frigate

Placing the third bomb in the Double Bomb Jump slightly lower than usual will help in achieving enough velocity to clear the bars, as shown above.

You can also skip the Frigate by getting an early Power Bomb Expansion and then going to the Phazon Mines via the Magmoor elevator (the one blocked by Bendezium just beyond Magmoor Workstation).

If you have the Boost Ball, holding down the B button and releasing it just as you see yourself become stuck in the bars can drastically increase your chances of making it through (as shown below). Don't forget to keep holding up on the Analog Stick when you release B.